Don't track allocations in product mode.

runtime/vm/assembler_mips.cc

Index: runtime/vm/assembler_mips.cc
diff --git a/runtime/vm/assembler_mips.cc b/runtime/vm/assembler_mips.cc
index f2416cb52a0f34076fb958a938ee34484a79a599..954cea60ad8b8e49b62c1d88b691e4935e3fd38a 100644
--- a/runtime/vm/assembler_mips.cc
+++ b/runtime/vm/assembler_mips.cc
@@ -860,6 +860,26 @@ void Assembler::LeaveStubFrameAndReturn(Register ra) {
 }
 
 
+#ifndef PRODUCT
+void Assembler::MaybeTraceAllocation(intptr_t cid,
+                                     Register temp_reg,
+                                     Label* trace) {
+  ASSERT(cid > 0);
+  ASSERT(!in_delay_slot_);
+  ASSERT(temp_reg != kNoRegister);
+  ASSERT(temp_reg != TMP);
+  intptr_t state_offset = ClassTable::StateOffsetFor(cid);
+  LoadIsolate(temp_reg);
+  intptr_t table_offset =
+    Isolate::class_table_offset() + ClassTable::TableOffsetFor(cid);
+  lw(temp_reg, Address(temp_reg, table_offset));
+  AddImmediate(temp_reg, state_offset);
+  lw(temp_reg, Address(temp_reg, 0));
+  andi(CMPRES1, temp_reg, Immediate(ClassHeapStats::TraceAllocationMask()));
+  bne(CMPRES1, ZR, trace);
+}
+
+
 void Assembler::UpdateAllocationStats(intptr_t cid,
                                       Register temp_reg,
                                       Heap::Space space) {
@@ -907,25 +927,7 @@ void Assembler::UpdateAllocationStatsWithSize(intptr_t cid,
   addu(TMP, TMP, size_reg);
   sw(TMP, Address(temp_reg, size_field_offset));
 }
-
-
-void Assembler::MaybeTraceAllocation(intptr_t cid,
-                                     Register temp_reg,
-                                     Label* trace) {
-  ASSERT(cid > 0);
-  ASSERT(!in_delay_slot_);
-  ASSERT(temp_reg != kNoRegister);
-  ASSERT(temp_reg != TMP);
-  intptr_t state_offset = ClassTable::StateOffsetFor(cid);
-  LoadIsolate(temp_reg);
-  intptr_t table_offset =
-    Isolate::class_table_offset() + ClassTable::TableOffsetFor(cid);
-  lw(temp_reg, Address(temp_reg, table_offset));
-  AddImmediate(temp_reg, state_offset);
-  lw(temp_reg, Address(temp_reg, 0));
-  andi(CMPRES1, temp_reg, Immediate(ClassHeapStats::TraceAllocationMask()));
-  bne(CMPRES1, ZR, trace);
-}
+#endif  // !PRODUCT
 
 
 void Assembler::TryAllocate(const Class& cls,